2015 World Championships in Athletics – Men's 100 metres
Final

Rank
Lane
Name
Nationality
Time
Notes
-
5
Usain Bolt
Jamaica (JAM)
9.79
SB
-
7
Justin Gatlin
United States (USA)
9.80
-
-
3
Trayvon Bromell
United States (USA)
9.92
-
-
9
Andre De Grasse
Canada (CAN)
9.92
PB
5
4
Mike Rodgers
United States (USA)
9.94
-
6
6
Tyson Gay
United States (USA)
10.00
-
7
8
Asafa Powell
Jamaica (JAM)
10.00
-
8
1
Jimmy Vicaut
France (FRA)
10.00
-
9
2
Su Bingtian
China (CHN)
10.06
-

Question: What was Bolt's winning time and how much did he win by?
Answer: In the final, Bolt finished a second ahead of Gatlin, in a time of 9.79 s.